3 Byfield, Welwyn Garden City, AL8 7AL
About 3 Byfield
3 Byfield is a mid-terrace house in Welwyn Garden City (AL8 7AL). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (May 2023) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 79).
5 planning records sit against the property, 5 approved, 0 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. At 111 m² it's 27.6% larger than the typical home in the postcode (87 m² median across 20 EPCs). Across 1999–2023, sale prices on this property compounded at 6.2% per year. Today's modelled estimate of £442,000 is 14.1% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£324/sq ft) was about 22.9% above the typical sold price in the postcode. Most recent transfer: December 2023 at £387,500.
Know exactly what you're buying at 3 Byfield
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Planning history
3 Byfield has been through 5 approved planning applications — a well-evolved property.
- May 2002ConservatoryFullIn report
Extension: Single storey · Rear of property
SINGLE STOREY REAR EXTENSION AND CONSERVATORY. (REVISION TO PLANNING PERMISSION N6/2001/1452/FP)
Extension- Reference
- N6/2002/0432/FP
- May 2002ConservatoryIn report
Extension: Single storey · Rear of property
SINGLE STOREY REAR EXTENSION AND CONSERVATORY. (REVISION TO PLANNING PERMISSION W/2001/1455/EM)
Extension- Reference
- W6/2002/0433/EM
What's in 3 Byfield, Welwyn Garden City, AL8 7AL's planning history?
3 more on this property, plus refusals, disputes and full decisions nearby, in the report.
Sales history & valuation
Price for 3 Byfield has grown more than fourfold since the 1999 starting point.
£442,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.2% per year over 25 years.
£387,500
Growth on file: 6.2% per year over 25 years.
Sales timeline
1 December 2023Most recent
£387,500
+342.9%over 24 years26 February 1999
£87,500
Median price across the last 5 sales in AL8 7AL: £385,000 (2025–2021).
Nearby sales in AL8 7AL
4 Byfield, Welwyn Garden City, AL8 7AL
Sold Mar 2025
£380,00026 Byfield, Welwyn Garden City, AL8 7AL
Sold Feb 2024
£385,00018 Byfield, Welwyn Garden City, AL8 7AL
Sold Sept 2022
£445,00017 Byfield, Welwyn Garden City, AL8 7AL
Sold Aug 2022
£450,00024 Byfield, Welwyn Garden City, AL8 7AL
Sold Nov 2020
£345,000
Everything we know about 3 Byfield, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Byfield homes
3 Byfield outperforms the street on floor area by a wide margin.
Price per m²
£3,491
Street avg £3,931
Floor Area
111 m²
Street avg 86 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.4 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Sewells — bus stop.
Closest school
0.2 km
Harwood Hill Junior Mixed Infant and Nursery School. 19 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.